... design structure, advanced technology, convenient installation, accurate measurement. JBD series of the gas meter are applicable ... Features:New design structure, advanced technology, convenient installation, accurate measurement. The shell of JBD1. 6 - SA. JBD2. 5 ... product is precise with small loss of pressure in measurement, and reliable. Main Technical ParametersModelJBD2.5-SAAccuracyB levelNominal ...